bfd/hosts/x86-64linux.h

   1 /* Copyright (C) 2006-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  17    MA 02110-1301, USA.  */
  18
  19 /* This is somewhat modelled after the file of the same name on SVR4
  20    systems.  It provides a definition of the core file format for ELF
  21    used on Linux.  It doesn't have anything to do with the /proc file
  22    system, even though Linux has one.
  23
  24    Anyway, the whole purpose of this file is for GDB and GDB only.
  25    Don't read too much into it.  Don't use it for anything other than
  26    GDB unless you know what you are doing.  */
  27
  28 #include <features.h>
  29 #include <sys/time.h>
  30 #include <sys/types.h>
  31
  32 /* We define here only the symbols differing from their 64-bit variant.  */
  33 #include <sys/procfs.h>
  34 #include <stdint.h>
  35
  36 /* Unsigned 64-bit integer aligned to 8 bytes.  */
  37 typedef uint64_t __attribute__ ((__aligned__ (8))) a8_uint64_t;
  38
  39 #undef HAVE_PRPSINFO32_T
  40 #define HAVE_PRPSINFO32_T
  41 #undef HAVE_PRPSINFO32_T_PR_PID
  42 #define HAVE_PRPSINFO32_T_PR_PID
  43
  44 #undef HAVE_PRSTATUS32_T
  45 #define HAVE_PRSTATUS32_T
  46
  47 /* These are the 32-bit x86 structures.  */
  48
  49 struct user_regs32_struct
  50 {
  51   int32_t ebx;
  52   int32_t ecx;
  53   int32_t edx;
  54   int32_t esi;
  55   int32_t edi;
  56   int32_t ebp;
  57   int32_t eax;
  58   int32_t xds;
  59   int32_t xes;
  60   int32_t xfs;
  61   int32_t xgs;
  62   int32_t orig_eax;
  63   int32_t eip;
  64   int32_t xcs;
  65   int32_t eflags;
  66   int32_t esp;
  67   int32_t xss;
  68 };
  69
  70 struct user_regs64_struct
  71 {
  72   a8_uint64_t r15;
  73   a8_uint64_t r14;
  74   a8_uint64_t r13;
  75   a8_uint64_t r12;
  76   a8_uint64_t rbp;
  77   a8_uint64_t rbx;
  78   a8_uint64_t r11;
  79   a8_uint64_t r10;
  80   a8_uint64_t r9;
  81   a8_uint64_t r8;
  82   a8_uint64_t rax;
  83   a8_uint64_t rcx;
  84   a8_uint64_t rdx;
  85   a8_uint64_t rsi;
  86   a8_uint64_t rdi;
  87   a8_uint64_t orig_rax;
  88   a8_uint64_t rip;
  89   a8_uint64_t cs;
  90   a8_uint64_t eflags;
  91   a8_uint64_t rsp;
  92   a8_uint64_t ss;
  93   a8_uint64_t fs_base;
  94   a8_uint64_t gs_base;
  95   a8_uint64_t ds;
  96   a8_uint64_t es;
  97   a8_uint64_t fs;
  98   a8_uint64_t gs;
  99 };
 100
 101 /* Type for a general-purpose register.  */
 102 typedef uint32_t elf_greg32_t;
 103 typedef a8_uint64_t elf_greg64_t;
 104
 105 /* And the whole bunch of them.  We could have used `struct
 106    user_regs_struct' directly in the typedef, but tradition says that
 107    the register set is an array, which does have some peculiar
 108    semantics, so leave it that way.  */
 109 #define ELF_NGREG32 (sizeof (struct user_regs32_struct) / sizeof(elf_greg32_t))
 110 typedef elf_greg32_t elf_gregset32_t[ELF_NGREG32];
 111 #define ELF_NGREG64 (sizeof (struct user_regs64_struct) / sizeof(elf_greg64_t))
 112 typedef elf_greg64_t elf_gregset64_t[ELF_NGREG64];
 113
 114 /* Definitions to generate Intel SVR4-like core files.  These mostly
 115    have the same names as the SVR4 types with "elf_" tacked on the
 116    front to prevent clashes with Linux definitions, and the typedef
 117    forms have been avoided.  This is mostly like the SVR4 structure,
 118    but more Linuxy, with things that Linux does not support and which
 119    GDB doesn't really use excluded.  */
 120
 121 struct prstatus32_timeval
 122   {
 123     int tv_sec;
 124     int tv_usec;
 125   };
 126
 127 struct prstatus64_timeval
 128   {
 129     a8_uint64_t tv_sec;
 130     a8_uint64_t tv_usec;
 131   };
 132
 133 struct elf_prstatus32
 134   {
 135     struct elf_siginfo pr_info;         /* Info associated with signal.  */
 136     short int pr_cursig;                /* Current signal.  */
 137     unsigned int pr_sigpend;            /* Set of pending signals.  */
 138     unsigned int pr_sighold;            /* Set of held signals.  */
 139     pid_t pr_pid;
 140     pid_t pr_ppid;
 141     pid_t pr_pgrp;
 142     pid_t pr_sid;
 143     struct prstatus32_timeval pr_utime;         /* User time.  */
 144     struct prstatus32_timeval pr_stime;         /* System time.  */
 145     struct prstatus32_timeval pr_cutime;        /* Cumulative user time.  */
 146     struct prstatus32_timeval pr_cstime;        /* Cumulative system time.  */
 147     elf_gregset32_t pr_reg;             /* GP registers.  */
 148     int pr_fpvalid;                     /* True if math copro being used.  */
 149   };
 150
 151 struct elf_prstatusx32
 152   {
 153     struct elf_siginfo pr_info;         /* Info associated with signal.  */
 154     short int pr_cursig;                /* Current signal.  */
 155     unsigned int pr_sigpend;            /* Set of pending signals.  */
 156     unsigned int pr_sighold;            /* Set of held signals.  */
 157     pid_t pr_pid;
 158     pid_t pr_ppid;
 159     pid_t pr_pgrp;
 160     pid_t pr_sid;
 161     struct prstatus32_timeval pr_utime;         /* User time.  */
 162     struct prstatus32_timeval pr_stime;         /* System time.  */
 163     struct prstatus32_timeval pr_cutime;        /* Cumulative user time.  */
 164     struct prstatus32_timeval pr_cstime;        /* Cumulative system time.  */
 165     elf_gregset64_t pr_reg;             /* GP registers.  */
 166     int pr_fpvalid;                     /* True if math copro being used.  */
 167   };
 168
 169 struct elf_prstatus64
 170   {
 171     struct elf_siginfo pr_info; /* Info associated with signal.  */
 172     short int pr_cursig;                /* Current signal.  */
 173     a8_uint64_t pr_sigpend;             /* Set of pending signals.  */
 174     a8_uint64_t pr_sighold;             /* Set of held signals.  */
 175     pid_t pr_pid;
 176     pid_t pr_ppid;
 177     pid_t pr_pgrp;
 178     pid_t pr_sid;
 179     struct prstatus64_timeval pr_utime;         /* User time.  */
 180     struct prstatus64_timeval pr_stime;         /* System time.  */
 181     struct prstatus64_timeval pr_cutime;        /* Cumulative user time.  */
 182     struct prstatus64_timeval pr_cstime;        /* Cumulative system time.  */
 183     elf_gregset64_t pr_reg;             /* GP registers.  */
 184     int pr_fpvalid;                     /* True if math copro being used.  */
 185   };
 186
 187 struct elf_prpsinfo32
 188   {
 189     char pr_state;                      /* Numeric process state.  */
 190     char pr_sname;                      /* Char for pr_state.  */
 191     char pr_zomb;                       /* Zombie.  */
 192     char pr_nice;                       /* Nice val.  */
 193     unsigned int pr_flag;               /* Flags.  */
 194     unsigned short int pr_uid;
 195     unsigned short int pr_gid;
 196     int pr_pid, pr_ppid, pr_pgrp, pr_sid;
 197     /* Lots missing */
 198     char pr_fname[16];                  /* Filename of executable.  */
 199     char pr_psargs[ELF_PRARGSZ];        /* Initial part of arg list.  */
 200   };
 201
 202 struct elf_prpsinfo64
 203   {
 204     char pr_state;                      /* Numeric process state.  */
 205     char pr_sname;                      /* Char for pr_state.  */
 206     char pr_zomb;                       /* Zombie.  */
 207     char pr_nice;                       /* Nice val.  */
 208     a8_uint64_t pr_flag;                /* Flags.  */
 209     unsigned int pr_uid;
 210     unsigned int pr_gid;
 211     int pr_pid, pr_ppid, pr_pgrp, pr_sid;
 212     /* Lots missing */
 213     char pr_fname[16];                  /* Filename of executable.  */
 214     char pr_psargs[ELF_PRARGSZ];        /* Initial part of arg list.  */
 215   };
 216
 217 /* The rest of this file provides the types for emulation of the
 218    Solaris <proc_service.h> interfaces that should be implemented by
 219    users of libthread_db.  */
 220
 221 /* Process status and info.  In the end we do provide typedefs for them.  */
 222 typedef struct elf_prstatus32 prstatus32_t;
 223 typedef struct elf_prstatusx32 prstatusx32_t;
 224 typedef struct elf_prstatus64 prstatus64_t;
 225 typedef struct elf_prpsinfo32 prpsinfo32_t;
 226 typedef struct elf_prpsinfo64 prpsinfo64_t;